This round rubber coaster is made of a durable heat-resistant polyester fabric top, backed with a neoprene rubber non-slip backing, keeps things from sliding. It measures 3.5" in diameter, 1/8" thick. It will not discolor or fade, machine washable.

Its my second order of coaster and I may order more. These are a blast to have around. So economical as personal or this, gag gifts...Its really neat and simple to make. The material is flexible and as mentioned by Ms. Tricia is similar to that of mousepads. Colors= GREAT. Material= DURABLE.

These coasters are great! They are made of the same material that is used to make mousepads. The colors look great. The resolution is not as good as if it were on paper, but that was expected since this is rubber.

I was worried that the images wouldn't be centered (it'd be terrible if someone's head were cut off!) so I created a border around each picture, but it turns out that even the circular border was centered and symmetrical. I only bought 4 to give to friends, so I might buy more later.